Mock cinder.wsgi.Server in TestWSGIService
Mock cinder.wsgi.Server in TestWSGIService

The fixed tests were binding to port 8776. These unit tests should not
be starting the wsgi app and so the class has been mocked.

Change-Id: I52b8ce4788741a0802d4d91d413474101542a3e0
Closes-bug: #1392498

rakeshmi/cinder,Datera/cinder,takeshineshiro/cinder,eharney/cinder,Hybrid-Cloud/cinder,ge0rgi/cinder,abusse/cinder,saeki-masaki/cinder,scality/cinder,sasukeh/cinder,nikesh-mahalka/cinder,Akrog/cinder,abusse/cinder,mahak/cinder,openstack/cinder,winndows/cinder,bswartz/cinder,bswartz/cinder,scottdangelo/RemoveVolumeMangerLocks,manojhirway/ExistingImagesOnNFS,cloudbase/cinder,Hybrid-Cloud/cinder,JioCloud/cinder,saeki-masaki/cinder,petrutlucian94/cinder,hguemar/cinder,Nexenta/cinder,JioCloud/cinder,nexusriot/cinder,manojhirway/ExistingImagesOnNFS,julianwang/cinder,tlakshman26/cinder-https-changes,leilihh/cinder,dims/cinder,tlakshman26/cinder-new-branch,CloudServer/cinder,openstack/cinder,dims/cinder,takeshineshiro/cinder,potsmaster/cinder,j-griffith/cinder,duhzecca/cinder,hguemar/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full,apporc/cinder,cloudbase/cinder,tlakshman26/cinder-https-changes,winndows/cinder,NetApp/cinder,phenoxim/cinder,rakeshmi/cinder,Paul-Ezell/cinder-1,j-griffith/cinder,Paul-Ezell/cinder-1,eharney/cinder,Accelerite/cinder,Datera/cinder,Akrog/cinder,nikesh-mahalka/cinder,sasukeh/cinder,scality/cinder,duhzecca/cinder,scottdangelo/RemoveVolumeMangerLocks,tlakshman26/cinder-new-branch,blueboxgroup/cinder,CloudServer/cinder,julianwang/cinder,leilihh/cinder,potsmaster/cinder,blueboxgroup/cinder,phenoxim/cinder,Accelerite/cinder,petrutlucian94/cinder,tlakshman26/cinder-bug-fix-volume-conversion-full,NetApp/cinder,Nexenta/cinder,mahak/cinder,apporc/cinder,nexusriot/cinder